Auto Mark As Read

Automatically mark incoming messages as read if they are in one of selected folders.
An attempt to revive & enhance 'Mark Junk Read' by Alex Cabal

RedThunderMineBird Plus

Provides ability to create issues on Redmine from the context menu or the button in the message header area.

Mark Read on Reply

Mark messages as read when you reply to them.

Thunderbird OpenProject

Extension to add tasks to OpenProject

YouTube Video Downloader

The Complete Guide to YouTube Video Downloader Converter Tool and How They Can Help You Easily Download and Convert Videos from YouTube.

Empty Folder

Adds a keyboard action (Ctrl+Del) and a folder context menu to delete all messages in a folder. Has a confirmation dialog to prevent accidental deletions

Simple Template

You will be able to create and automatically insert templates for each account.

KeepRunning

Once you close Thunderbird you will no longer be able to see your new emails. This plugin keeps Thunderbird active in the background, meaning you can still receive your new emails after closing the app. Use this when the app is in the startup.

Unsubscribe

Lightweight solution to simplify unsubscribing from newsletters

SPAM Check for OCN

- SPAM Header Checker for OCN(Japanese Internet Provider)
- This plugin looks at the header of the mail and assigns a "junk mail" mark.
- Only if the header (X-CON-SPAM-CHECK) of the mail is set to 100%, it will be marked as "spam".

YouTube RSS feed redesign

Adds YouTube thumbnails to RSS feed entries

Quick Spaces

Makes it possible to add custom addresses to the spaces toolbar

Better reply

Better reply to emails by extracting email addresses from the content of the message and allowing you to reply to them directly.

Made in collaboration with aski75.

Crypto Price Tracker

Track the top 5 cryptocurrencies in real-time powered by simul8or

Check Links

Review the web addresses of all links in a draft message.

Torcharizer

Thunderbird add-on that generates concise AI summaries of emails using a local Ollama model

quickfilter-kbd

A simple Thunderbird extension that adds keyboard shortcuts to quick-filter messages with the same sender, subject, or recipient as a selected message.

Double Click Test

List Unsubscribe

Adds a button to unsubscribe from newsletters and other bulk email that has the List-Unsubscribe header.

Messenger - Quick Access

Quick Access to Facebook Messenger in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.